Set your party members gambit for "attack party leader's target" So when ur attackin a monster ur gettin a chain off of ur other party dudes wont attack something else an ruin ur chain. Had this happen when i had a 99 chain on those weird dudes in the yem-sana sand seas. I was workin on killin my 100 dude to make a big chanin when my party members started to attack one of theose worm/fish lookin things, they killed it a ruined my chain, an i had to start allllll over from 1!